1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 // INCLUDE FILES

    19 #include <e32debug.h>

    20 #include <ActiveIdle2DomainPSKeys.h>

    21 #include <e32property.h>

    22 

    23 #include "logging.h"

    24 #include "toolsstarteruiobserver.h"

    25 

    26 // CONSTANTS

    27 

    28 

    29 // ============================ MEMBER FUNCTIONS ===============================

    30 

    31 // ----------------------------------------------------------------------------

    32 // Constructor

    33 // ----------------------------------------------------------------------------

    34 //

    35 CToolsStarterIdleObserver::CToolsStarterIdleObserver(MToolsStarterIdleObserver& aObserver) :

    36     CActive(EPriorityStandard), // Standard priority

    37     iObserver(aObserver)

    38     {

    39     }

    40 

    41 // ----------------------------------------------------------------------------

    42 // Two-phased constructor

    43 // ----------------------------------------------------------------------------

    44 //

    45 CToolsStarterIdleObserver* CToolsStarterIdleObserver::NewL(MToolsStarterIdleObserver& aObserver)

    46     {

    47     CToolsStarterIdleObserver* self = new(ELeave) CToolsStarterIdleObserver(aObserver);

    48     CleanupStack::PushL(self);

    49     self->ConstructL();

    50     CleanupStack::Pop(self);

    51     return self;

    52     }

    53 

    54 // ----------------------------------------------------------------------------

    55 // 2nd phase construction

    56 // ----------------------------------------------------------------------------

    57 //

    58 void CToolsStarterIdleObserver::ConstructL()

    59     {

    60     CActiveScheduler::Add(this);

    61     

    62     // attach to the property which listens the idle state

    63     User::LeaveIfError( iProperty.Attach( KPSUidAiInformation, KActiveIdleState ) );

    64     

    65     LOG_MSG("CToolsStarterIdleObserver::ConstructL succesfully attached to property");

    66     }

    67 

    68 // ----------------------------------------------------------------------------

    69 // Destructor

    70 // ----------------------------------------------------------------------------

    71 //

    72 CToolsStarterIdleObserver::~CToolsStarterIdleObserver()

    73     {

    74     Cancel();

    75     iProperty.Close();

    76     }

    77 

    78 // ----------------------------------------------------------------------------

    79 // Starts listening for events

    80 // ----------------------------------------------------------------------------

    81 //

    82 void CToolsStarterIdleObserver::StartL()

    83     {

    84     Cancel();

    85     

    86     // subscribe to the property

    87     iProperty.Subscribe(iStatus);

    88     SetActive();

    89     }

    90 

    91 // ----------------------------------------------------------------------------

    92 // Implements cancellation of an outstanding request.

    93 // ----------------------------------------------------------------------------

    94 //

    95 void CToolsStarterIdleObserver::DoCancel()

    96     {

    97     iProperty.Cancel();

    98     }

    99 

   100 // ----------------------------------------------------------------------------

   101 // Handles an active object's request completion event.

   102 // ----------------------------------------------------------------------------

   103 //

   104 void CToolsStarterIdleObserver::RunL()

   105     {

   106     // check the status

   107     TInt idleStatus(KErrNotFound);

   108     TInt err( iStatus.Int() );

   109     

   110     if (err == KErrNone)

   111         {

   112         // resubscribe before processing new value to prevent missing updates

   113         StartL();

   114         err = iProperty.Get( KPSUidAiInformation, KActiveIdleState, idleStatus );

   115         

   116         if (err == KErrNone && idleStatus == EPSAiForeground) 

   117             {

   118             LOG_MSG("CToolsStarterIdleObserver::RunL idle foreground state detected");

   119 

   120             // idle state is active so notify the observer and no need to wait anymore

   121             iObserver.IdleStateActivated();

   122             Cancel();

   123             }

   124         else

   125             {

   126             LOG_MSG2("CToolsStarterIdleObserver::RunL unknown state %d", idleStatus);

   127             }

   128         }

   129 

   130     else if (err != KErrCancel)

   131         {

   132         // try again..

   133         StartL();

   134         } 

   135     }

   136 

   137 // ----------------------------------------------------------------------------

   138 

   139 // End of File